R5020 Lite 5G Router

The R5020 Lite is Robustel’s new 5G capable router supporting global 5G, 4G and 3G bands. The R5020 Lite leverages our tried and tested high performance CPU platform and RobustOS 5 – an Operating System developed in-house by Robustel that has passed extensive 3rd party penetration testing.

R5020 Lite Datasheet

R5020 Lite Hardware Manual

RobustOS Software Manual

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The R5020 Lite is Robustel’s new 5G capable router supporting global 5G, 4G and 3G bands. The R5020 Lite leverages our tried and tested high performance CPU platform and RobustOS 5 – an Operating System developed in-house by Robustel that has passed extensive 3rd party penetration testing.

R5020 Lite is compatible with 3GPP Release 16 and targeted at the following applications:


Broadband Failover – R5020 Lite can be configured to use Ethernet or Wi-Fi as primary internet and failover to 5G/4G in the event of an outage. This can help provide resilience to shops and small offices at a reasonable cost and provide sufficient bandwidth for many users. IPsec, DMVPN, GRE+ many more protocols can be used for connections into core networks.
Primary Broadband – Cellular network operators can now provide unlimited 5G tariffs at very reasonable prices. For many, a chance to cut the cables and use a wireless internet connection can be technically or commercially favorable.

SD-WAN – whilst many appliances have cellular options built-in, the R5020 Lite can offer a very low-cost way to add a 5G backup route & by virtue of being able to located externally to the appliance, is more likely to get a good 5G signal!


RCMS is Robustel’s free router monitoring service that is fully compatible with the R5020 Lite. It is an extremely polished piece of software hosted on MS Azure & available as a privately hosted instance. You can try Robustel’s free router management platform by signing up here: https://rcms-cloud.robustel.net


Key Features:

  • Low cost industrial 5G Router
  • Global 5G/4G/3G cellular connections
  • Cutting-edge 5G 3GPP Release 16 cellular interface
  • Supports Ethernet, Wi-Fi and 5G/4G internet with auto-failover
  • 1 x RS232/RS485 (software configurable) ports for connection to industrial/legacy devices
  • Fully programmable Operating System with well documented SDK
  • Multiple VPN options are available, including DMVPN, IPsec, L2TP + more…
  • Free cloud management platform – RCMS
  • Robust metal enclosure with small footprint – DIN-rail + wall mount options
Cellular Interface
Number of antennas 4 (ANT0 + ANT1 + ANT2 + ANT3)
Connector SMA-K
SIM 2 x Mini SIM (2FF)
Ethernet Interface
Number of ports 2 x 10/100/1000 Mbps,
2 LAN by default, can be configured as
1 WAN + 1 LAN
Isolation protection 1 KV
WiFi Interface
Number of antennas 2 (WiFi1 + WiFi2)
Connector RP-SMA-K
Standards 802.11b/g/n/ac 2*2 MIMO, supports AP and Client modes
Frequency bands 2.412 – 2.472 GHz (2.4 GHz ISM band)

5.15 – 5.825 GHz (5 GHz ISM band)

Security WPA, WPA2, WEP, WPA3*
Encryption AES, TKIP, WEP64
Data speed 5G: Up to 867Mbps

2.4G: Up to 300Mbps



Serial Interface
Number of ports 1 x RS232 or 1 x RS485 (Software configurable)
Connector 1 x 3-pin 3.5 mm female socket
ESD protection ±8 KV air discharge, ±6 KV contact discharge
Baud rate 300 bps ~ 115200 bps
Signal definition RS232: TXD, RXD, GND

RS485: Data+ (A), Data- (B), Ground (GND)


Reset button 1 x RST
LED indicators 1 x RUN, 1 x Modem, 1 x USR, 1 x RSSI, 1 x Wi-Fi 2.4G,1 x Wi-Fi 5G
Built-in Watchdog
Software (Basic features of RobustOS)
Network protocols


VPN tunnel IPsec, OpenVPN, GRE
Firewall DMZ, anti-DoS, Filtering (IP/Domain name/MAC address), Port Mapping, Access Control
Management Web, CLI, SMS
Serial port Transparent, TCP Client/Server, UDP, Modbus RTU to TCP
Others Data Guard, etc.
Supported programming languages C, C++
Flash available for SDK 5MB
RAM available for SDK 128MB
App Center (Available Apps for RobustOS)
Apps* L2TP, PPTP, DMVPN, VRRP, QoS, SNMP, Language, RCMS, Dynamic Route,Data Guard, Captive Portal, WLAN Multi AP
*Upon request.For more Apps please visit www.robustel.com.
Power Supply and Consumption
Connector 2-pin 3.5 mm female socket with lock
Input voltage 12 ~ 36 VDC
Power consumption Idle: 370 mA@12 V

Data link: 1.7 A (peak) @12 V

Physical Characteristics
Ingress protection IP30
Housing & Weight Aluminum, 475 g
Dimension 136 x 115 x 32 mm
Installations DIN rail mounting, desktop or wall mounting
Operating Temperature -20 ~ +55°C (Normal temperature)

-25 ~ +70°C (Extended temperature)

Storage Temperature -40 to +85 °C
Relative Humidity 5 to 95% RH
Regulatory and Type Approvals
Environmental RoHS2.0
*in progress